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Author SHA1 Message Date
Chris Lattner
7358482dbc if we have two elements, insert both, don't use std::sort. 
This speeds up the new GVN by another 3%

llvm-svn: 60747
 2008-12-09 07:05:45 +00:00
Chris Lattner
e428927eda If we're only adding one new element to 'Cache', insert it into its known 
position instead of using a full sort. This speeds up GVN by ~4% with the
new memdep stuff.

llvm-svn: 60746
 2008-12-09 06:58:04 +00:00
Chris Lattner
951d1310c9 convert a couple other places that use pred_iterator to use the caching 
pred iterator.

llvm-svn: 60745
 2008-12-09 06:44:17 +00:00
Chris Lattner
6eb2690ea4 newline at end of phile 
llvm-svn: 60744
 2008-12-09 06:32:32 +00:00
Chris Lattner
d7df2dce20 use hte new pred cache to speed up the new non-local memdep 
queries.  This speeds up GVN using the new queries (not yet
checked in) by just over 10%.

llvm-svn: 60743
 2008-12-09 06:28:49 +00:00
Chris Lattner
14f67ea7b5 pred_iterator got a lot slower since use-diet landed. This is a 
really simple cache class for these queries.  Hopefully this can
be removed if pred_iterator speeds back up.

llvm-svn: 60742
 2008-12-09 06:27:07 +00:00
Scott Michel
5c944059b4 CellSPU: 
- Fix call.ll and call_indirect.ll expected results, now that it's using a
  different pre-register allocation scheduler.

llvm-svn: 60741
 2008-12-09 06:12:03 +00:00
Mon P Wang
0c011f8ba9 Fix getNode to allow a vector for the shift amount for shifts of vectors. 
Fix the shift amount when unrolling a vector shift into scalar shifts.
Fix problem in getShuffleScalarElt where it assumes that the input of
a bit convert must be a vector.

llvm-svn: 60740
 2008-12-09 05:46:39 +00:00
Chris Lattner
e32dbaddd2 Fix a really subtle off-by-one bug that Duncan noticed with valgrind 
on test/CodeGen/Generic/2007-06-06-CriticalEdgeLandingPad.

llvm-svn: 60739
 2008-12-09 04:47:21 +00:00
Scott Michel
cf7ec43939 CellSPU: 
- Change default scheduling preference to list-burr, which produces somewhat
  better code than the default. Could also use list-tdrr, but need to ask
  dev list about the appropriate handy mnemonic before commiting.

llvm-svn: 60738
 2008-12-09 03:37:19 +00:00
Bill Wendling
7250a29def Add initial support for fast-isel of the [SU]ADDO intrinsics. It isn't 
complete. For instance, it lowers the common case into this less-than-optimal
code:

        addl    %ecx, %eax
        seto    %cl
        testb   %cl, %cl
        jne     LBB1_2  ## overflow

instead of:

        addl    %ecx, %eax
        jo      LBB1_2  ## overflow

That will come in a future commit.

llvm-svn: 60737
 2008-12-09 02:42:50 +00:00
Dan Gohman
0e700eb88b Fix the name of ISD::TokenFactor in a comment. Thanks Gabor! 
llvm-svn: 60736
 2008-12-09 02:18:52 +00:00
Chris Lattner
aa0be1e32a remove two unneeded forward declarations, pointed out by Gabor. 
llvm-svn: 60735
 2008-12-09 02:10:10 +00:00
Dan Gohman
e99b76aa24 Don't charge full latency for an anti-dependence, in this simplistic 
pipeline model.

llvm-svn: 60733
 2008-12-09 00:26:46 +00:00
Dan Gohman
9e5cc22129 Fix a couple of mistaken switch case fall-throughs. Thanks to Bill 
for spotting these!

llvm-svn: 60728
 2008-12-08 23:50:06 +00:00
Devang Patel
0ef5e583cd Actually test something. Use PR3170 test case. 
llvm-svn: 60727
 2008-12-08 23:44:46 +00:00
Chris Lattner
23e2ac8894 remove DebugIterations option. Despite the accusations, 
jump threading has been shown to only expose problems not
have bugs itself.  I'm sure it's completely bug free! ;-)

llvm-svn: 60725
 2008-12-08 22:44:07 +00:00
Evan Cheng
3bb2ad8a0a Re-apply 60689 now my head is screwed on right. 
llvm-svn: 60711
 2008-12-08 19:29:03 +00:00
Dan Gohman
6f3258586e Fix the top-level comments, and fix some 80-column violations. 
llvm-svn: 60707
 2008-12-08 17:50:35 +00:00
Dan Gohman
c0280e8867 Move the conversion to intptr_t to a separate statement. This 
avoids GCC's warning even on 64-bit hosts.

llvm-svn: 60706
 2008-12-08 17:41:24 +00:00
Dan Gohman
5bca97fc4f Revert 60689. It caused many regressions on Darwin targets. 
llvm-svn: 60705
 2008-12-08 17:38:02 +00:00
Ted Kremenek
164f7f4a43 Use 'delete []' instead of 'delete' in OwningArray::reset(). 
llvm-svn: 60703
 2008-12-08 17:28:11 +00:00
Devang Patel
a8d0117253 Fix spelling. 
Thanks Duncan!

llvm-svn: 60702
 2008-12-08 17:07:24 +00:00
Devang Patel
82fb6bc606 Undo previous patch. 
llvm-svn: 60701
 2008-12-08 17:02:37 +00:00
Duncan Sands
fd39a042aa Fix comment typo. 
llvm-svn: 60698
 2008-12-08 14:10:36 +00:00
Duncan Sands
982c6ed1d9 Fix comment typo. 
llvm-svn: 60697
 2008-12-08 14:01:59 +00:00
Dan Gohman
14d4094968 Factor out the code for sign-extending/truncating gep indices 
and use it in x86 address mode folding. Also, make
getRegForValue return 0 for illegal types even if it has a
ValueMap for them, because Argument values are put in the
ValueMap. This fixes PR3181.

llvm-svn: 60696
 2008-12-08 07:57:47 +00:00
Chris Lattner
7307ef0ba3 add another level of caching for non-local pointer queries, keeping 
track of whether the CachedNonLocalPointerInfo for a block is specific
to a block.  If so, just return it without any pred scanning.  This is
good for a 6% speedup on GVN (when it uses this lookup method, which
it doesn't right now).

llvm-svn: 60695
 2008-12-08 07:31:50 +00:00
Chris Lattner
9020891916 consistency 
llvm-svn: 60694
 2008-12-08 07:21:39 +00:00
Chris Lattner
6ab4673c40 introduce a new RoundUpAlignment helper function, use it to 
remove some more 64-bit divs and rems from the StructLayout 
ctor.

llvm-svn: 60692
 2008-12-08 07:11:56 +00:00
Dan Gohman
f187690987 Make ConstantAggregateZero::get return a ConstantAggregateZero*, 
as suggested in PR3182.

llvm-svn: 60691
 2008-12-08 07:10:54 +00:00
Dan Gohman
84876ffe23 Update CPP backend for PrintModulePass API changes. 
llvm-svn: 60690
 2008-12-08 07:07:24 +00:00
Evan Cheng
d668dd83c0 Perform cheap checks first. 
llvm-svn: 60689
 2008-12-08 06:52:43 +00:00
Chris Lattner
d6036b3791 Speed up getABITypeSize by turning a i64 mul and div into an 
AND.  This is speedup on any reasonable target, but particularly
on 32-bit targets where this often turns into a libcall like udivdi3.

We know that alignments are a power of two but the compiler doesn't.

llvm-svn: 60688
 2008-12-08 06:50:51 +00:00
Chris Lattner
494eb47570 Some minor optimizations for isObjectSmallerThan. 
llvm-svn: 60687
 2008-12-08 06:28:54 +00:00
Dan Gohman
bd0aaeaf8c Clarify a comment. 
llvm-svn: 60685
 2008-12-08 04:54:58 +00:00
Dan Gohman
e4b1a93573 Move createVirtualRegister out-of-line. 
llvm-svn: 60684
 2008-12-08 04:54:11 +00:00
Dan Gohman
7954facae5 Clarify some comments. 
llvm-svn: 60683
 2008-12-08 04:53:23 +00:00
Dan Gohman
df0e24acce Generalize bugpoint's concept of a "safe" backend, and add options 
to allow the "safe" backend to be run with a different path, and/or
with different command-line options.

This enables the following use cases:
 - bugpoint llc against an llc command from a different build
 - bugpoint llc against the same llc with different command-line options
 - and more...

Also, document the existing "custom" interpreter options.

llvm-svn: 60681
 2008-12-08 04:02:47 +00:00
Nick Lewycky
69eb224a5e Fixes for Visual Studio users. Patch by OvermindDL1 on llvm-dev! 
llvm-svn: 60679
 2008-12-08 00:45:02 +00:00
Dan Gohman
8b7aa3053d Use bool instead of int, now that it no longer evokes a warning. 
llvm-svn: 60678
 2008-12-07 21:33:27 +00:00
Dan Gohman
42bd5cffc9 Use intptr_t instead of unsigned here, which is more appropriate 
in a really obscure way, but more importantly has the side effect
of avoiding a GCC warning in the case that IntType is bool.

llvm-svn: 60677
 2008-12-07 21:28:00 +00:00
Chris Lattner
1ff38d6629 add an assert. the cast<> below would catch this but a message is more 
useful.

llvm-svn: 60674
 2008-12-07 18:45:15 +00:00
Chris Lattner
8cd875dac6 factor some code better. 
llvm-svn: 60673
 2008-12-07 18:42:51 +00:00
Chris Lattner
9ebcc276e4 factor some code, fixing some fixme's. 
llvm-svn: 60672
 2008-12-07 18:39:13 +00:00
Chris Lattner
279bab1c8a fix a typo duncan noticed! 
llvm-svn: 60671
 2008-12-07 18:21:37 +00:00
Oscar Fuentes
3eaab7ff7a CMake: Added Tool.cpp to tools/llvmc/driver. 
llvm-svn: 60670
 2008-12-07 17:01:16 +00:00
Mikhail Glushenkov
63bd106f2c Man page update. 
llvm-svn: 60669
 2008-12-07 16:48:07 +00:00
Mikhail Glushenkov
c1fc4efe85 Describe recent changes in the documentation. 
llvm-svn: 60668
 2008-12-07 16:47:42 +00:00
Mikhail Glushenkov
c75a4df77c Make 'extern' an option property. 
Makes (forward) work better.

llvm-svn: 60667
 2008-12-07 16:47:12 +00:00